Dayarathne & K.D. Hyde, Mycosphere 7 (5): 617 (2016)








Sexual morph: Saprobic on decayed wood at a mangrove stand. Sexual morph: Ascomata 125–140 μm high, 105–115 μm diam., solitary to scattered, lacking stromatic tissues, deeply immersed, dark brown to black, globose to subglobose, uni-loculate, ostiolate, papillate. Ostioles central, apex composed of brown outer amorphous layer and inner yellow cells of textura porrecta and ostiolar canal filled with periphyses. Peridium up to 2.5 μm wide, thick, a single layer of amorphous fungal tissue fused with the host cells, incorporating occasionally in the host tissues. Paraphyses 2–3.5 μm wide, arising from the base of perithecia, composed of long, wide, filamentous, thin-walled cells, guttulate, unbranched, septate, slightly constricted at septum, narrow towards the apex, with apex blunt. Asci 40–50 × 7.5–10.5 μm (x = 45 × 2.8 μm, n = 20), 8-spored, unitunicate, clavate, long pedicellate, apically rounded, with J- subapical ring, initially deliquescing. Ascospores 7.5–8.5 × 2.5–3 μm (x = 8 × 2.8 μm, n = 30), overlapping bi- to tetra-seriate, allantoid, light brown, aseptate, 1-septate at maturity, not constricted at the septum, smooth-walled with one to few small guttules, slightly curved. Asexual morph: Undetermined.

Key references:

Dayarathne MC, Phookamsak R, Hyde KD, Manawasinghe IS, To-anun C and Jones EBG (2016) Halodiatrype, a novel diatrypaceous genus from mangroves with H. salinicola and H. avicenniae spp. nov. Mycosphere 7 (5): 612–627.

Key to Halodiatrype species:

1.Ascospores aseptate                                                             H. avicenniae

1.Ascospores septate                                                              2

2.Ascomata125–140×105–115 μm.                                          H. salinicola

2.Ascomata 480–920×630–970 μm                                          H. mangrovei


Type & Location:
Other Specimens:
saprobic on dead submerged marine wood.
Pertinent Literature:
NOTES: The new species H. salinicola is clearly different from other taxa in the family Diatrypaceae based on molecular data and morphology. It is characterized by immersed ascomata with a cylindrical or subconical, periphysate ostiole, apically rounded, clavate asci and allantoid, 0–1-septate, and light brown ascospores. Currently three species are assigned to Halodiatrype: H. avicenniae, H. avicenniae and H. mangrove. Halodiatrype salinicola can be clearly distinguish from H. avicenniae by having unique ascomatal characters and apex composed of brown outer amorphous layer and inner yellow cells of textura porrecta and aseptate ascospores becoming 1-septate at maturity. Halodiatrype salinicola and H. avicenniae grouped as a separate lineage with high bootstrap support (100% ML/ 1.00 PP/ 100% MP). The two-novel species share some common features including ascomata lacking stromatic tissues and allantoid, light brown and ascospores and resemble Cryptosphaeria species. The marine species, Cryptosphaeria mangrovei is morphologically similar, and is rtransferred to Halodiatrype (Dayarathne et al. 2016).


Mushroom Research Foundation 
Chiang Rai 


Sueggestions for improvement of the webiste, corrections or additions should be send to:

Gareth Jones: Email:

Mark Calabon: Email: